How to use the zip function to improve file security

According to the network survey, it is found that the compressed package software is currently the most widely used software tool, which can save users a lot of space and improve the security factor of the file. How to improve the file security factor by using the compressed package function? Here are 6 tips for sharing the security of the compressed package:

1. Know the file compression size in advance. Want to know how big the file to be compressed will be after compression? Please open the WinRAR window, select the folder or file to be compressed, and then click the “info” button on the toolbar. In the window that opens, click “estimate compression ratio""estimate" ; button, WinRAR will give data such as compression ratio, compression package size and compression estimation time, which is very useful for you to compress large files or folders. If you want to click the “Info” button every time, WinRAR will automatically evaluate the file, you can also select the “Auto Start” option. 2, hide the file name in the compressed package Almost all compression software provides encryption to protect personal privacy and important data. But most of them ignore the encryption of file names. Once someone else has an interest in your data, data security becomes precarious. Therefore, it is best to include the file name in the encryption range. If you don't know what is stored in the compressed package, who will spend time and effort to crack it? WinRAR can encrypt the file name of the RAR file. The steps are as follows: First click the “Add” button on the main interface of WinRAR to create a new compressed package, and then select the “File” tab on the pop-up window. And select the file to be added to the archive, then switch to the "Advanced" tab, click the "Set Password …" button, enter the password. 3. Editing the files in the compressed package When editing the files in the compressed package, do not close the compressed package window. Otherwise, the modification of the file cannot be saved. Moreover, if you double-click to open other RAR archives at this time, WinRAR will also automatically close the archive of the file you are modifying, so it is recommended to press the “ Ctrl+S ” key in the WinRAR window to cancel the "General" tab "Reuse existing windows" checkbox. 4, add a comment to the compressed package Use more compressed files, time will not know what files, not to mention what is in the file, if you write a few comments to the compressed file, then open to see Knowing what it does, it provides this functionality in WinRAR. The specific method is: first open the corresponding RAR file with WinRAR, and then click the "comment" button on the toolbar to enter your own comment content in the comment window (support Chinese input). Next time you want to add or view, click the “Comment” button on the toolbar again. When you open this file later, its comment information will appear on the right side of the window, at a glance! 5, how to set a permanent universal WinRAR compression password If you make encrypted compression packages very frequently, and both use the same common password, then you can let WinRAR automatically add passwords, the default password is also automatic when you create the compression package It's very convenient to add it. The specific method is: open WinRAR, select the "Options → Settings" command, in the pop-up "Settings" window, select the "Compression option" label, and then click the "Create default configuration" button, In the pop-up "Set default compression options" window, select the "Advanced" tab, click the "Set Password" button, and finally enter your usual password in "Password Settings", press "Continuously" OK & rdquo; Save the settings. Yes, before clicking "OK", be sure to select the "encrypted file name" option to encrypt the file name. 6. Lock the compressed file to ensure security When the file is deleted in the RAR archive, WinRAR will automatically update it, and those deleted files can no longer be retrieved. Therefore, for a compressed package that does not need to be modified or is important, click on the selected package in WinRAR, press Alt+I, in the information dialog window of this compression that opens, click to switch to the “ ” option page, in the "Lock compressed file" check "Remove the compressed file" check box is selected, click the "OK" button. Thus the archive is locked and the files cannot be modified or deleted. Note: The above operation is only for RAR compressed files, and after the lock compressed file function is enabled, the generated compressed package will no longer be modified, which is very useful for backing up important data. Through the above explanation, everyone has a new understanding of the security function of the compressed package. Suggestion: When you think that the file is very important, you may wish to build a folder to put the file into compression, and then use the above. Method for multiple encryption, the purpose of doing this is to improve the file safety factor!